Abstract: The outer edge of a filtration membrane is thermally welded to a filter plate by a first thermal welding part. The first thermal welding part includes an outer boundary line disposed inside an outer edge of the filter plate and an inner boundary line disposed inside the outer boundary line. The outer boundary line has a plurality of first projected portions and first recessed portions that are alternately formed. The first projected portion projects toward the outer edge of the filter plate, and the first recessed portion is formed between the first projected portions and retracts in an inward direction A opposite to the outer edge of the filter plate.

Abstract: A disclosed method for producing an elongated filler-containing fluororesin sheet includes: a step (I) of forming a strip member from a strip sheet containing a fluororesin, a filler, and a forming aid; and a step (II) of forming an elongated sheet strip by rolling the strip member in a longitudinal direction of the strip member. In the step (I), the strip member is formed by bending the strip sheet in such a manner that quadrilaterals formed on a surface of the strip member, each defined by two strip member side edges extending in the longitudinal direction of the strip member and two strip sheet side edges of the strip sheet that crosses a region between the two strip member side edges are parallelograms each having an acute angle ? as an interior angle and that the parallelograms are arranged in the longitudinal direction of the strip member.

Abstract: A disclosed method for producing an elongated filler-containing fluororesin sheet includes: a step (I) of forming a strip member from a strip sheet containing a fluororesin, a filler, and a forming aid; and a step (II) of forming an elongated sheet strip by rolling the strip member in a longitudinal direction of the strip member. In the step (I), the strip member is formed by bending the strip sheet in such a manner that quadrilaterals formed on a surface of the strip member, each defined by two strip member side edges extending in the longitudinal direction of the strip member and two strip sheet side edges of the strip sheet that crosses a region between the two strip member side edges are parallelograms each having an acute angle ? as an interior angle and that the parallelograms are arranged in the longitudinal direction of the strip member.

Abstract: The present invention provides a thermally-conductive sheet excellent in heat dissipation properties. The thermally-conductive sheet includes a polymer matrix and a thermally-conductive filler dispersed in the polymer matrix. The present invention is a thermally-conductive sheet including a polymer matrix and non-spherical particles of a thermally-conductive filler that are dispersed in the polymer matrix. At least a part of the thermally-conductive filler particles are oriented in a thickness direction of the sheet.

Abstract: The present invention provides a thermally-conductive sheet excellent in heat dissipation properties. The thermally-conductive sheet includes a polymer matrix and a thermally-conductive filler dispersed in the polymer matrix. The present invention is a thermally-conductive sheet including a polymer matrix and non-spherical particles of a thermally-conductive filler that are dispersed in the polymer matrix. At least a part of the thermally-conductive filler particles are oriented in a thickness direction of the sheet.

Abstract: The present invention provides a heat dissipating member containing a fluorine resin and a thermally-conductive filler and having good adhesive properties. The present invention is a heat dissipating member including: a porous base material containing a fluorine resin and a thermally-conductive filler; and an adhesive material contained in pores of the porous base material. The fluorine resin contains polytetrafluoroethylene.

Abstract: An assembled battery device (1) of the present invention includes: a plurality of single cells (11) electrically connected to each other and arranged in a row; and a thermal emission tape disposed between a single cell (A) and a single cell (B) that are adjacent to each other among the plurality of single cells (11). The plurality of single cells (11) each include battery elements and a metallic container (12) housing the battery elements. The thermal emission tape is attached to at least a portion of a surface of an outer wall of the container of the single cell (A), and/or to at least a portion of a surface of an outer wall of the container of the single cell (B), the surface of the outer wall of the container of the single cell (A) facing the single cell (B), the surface of the outer wall of the container of the single cell (B) facing the single cell (A). The thermal emission tape has a total emissivity of 0.7 or more at a wavelength of 2 ?m to 14 ?m.

Abstract: A thermally conductive film (10) includes a matrix (12) made of a resin and flaky filler particles (14) dispersed in the matrix (12). The flaky filler particles (14) each has a flaky filler body (16) made of boron nitride and a ?-ferrite coating (18) on the filler body (16), and are oriented in a through-thickness direction of the thermally conductive film (10). The resin is, for example, polyimide.

Abstract: An oil and heat resistant pressure-sensitive adhesive sheet includes a substrate containing a fluororesin, and a pressure-sensitive adhesive layer laminated on at least one surface of the substrate. The one surface of the substrate is subjected to a surface roughening treatment and/or a primer treatment, and the pressure-sensitive adhesive layer is formed from an aqueous dispersion type oil-resistant pressure-sensitive adhesive composition containing an aqueous dispersion polymer and inorganic particles.

Abstract: An aqueous dispersion type oil-resistant pressure-sensitive adhesive composition contains an aqueous dispersion polymer and inorganic particles. The content ratio of the inorganic particles with respect to 100 parts by mass of the aqueous dispersion polymer is 3 to 90 parts by mass.

Abstract: The heat dissipating housing (1) of the present invention includes a housing body (11) made of metal, and a first semiconducting tape for heat dissipation (12) attached to at least a part of the inner wall of the housing body (11). The first semiconducting tape for heat dissipation (12) includes a fluoropolymer substrate (13) containing carbon black, and an adhesive layer (14) formed on the fluoropolymer substrate (13).

Abstract: The invention provides a process for producing an optical waveguide, which comprises the steps of: forming a substrate adhesion layer on a surface of a substrate from a layer-forming material containing a coupling agent; forming an undercladding layer on the substrate adhesion layer; and forming a core layer having a predetermined pattern on the undercladding layer through a wet process with a developing solution.

Abstract: The invention provides a process for producing an optical waveguide, which comprises the steps of: forming a substrate adhesion layer on a surface of a substrate from a layer-forming material containing a coupling agent; forming an undercladding layer on the substrate adhesion layer; and forming a core layer having a predetermined pattern on the undercladding layer through a wet process with a developing solution.

Abstract: The invention provides a process for producing an optical waveguide, which comprises the steps of: continuously applying a polyimide resin precursor layer on a long-sheet substrate and then curing the layer to form a lower cladding layer; continuously applying a photosensitive polyimide resin precursor layer on the lower cladding layer; continuously exposing the applied photosensitive polyimide resin precursor layer to a light through a photomask having a predetermined pattern; continuously conducting post-exposure heating of the exposed polyimide resin precursor layer; continuously developing the polyimide resin precursor layer after the heating to thereby remove unexposed areas thereof and give a predetermined pattern; curing the developed polyimide resin precursor layer to thereby form a core layer having the predetermined pattern on the lower cladding layer; and continuously applying a polyimide resin precursor layer over the lower cladding layer so as to cover the core layer and then curing the precursor

Abstract: The present invention provides a polymer lightguide which has a waveguide layer comprising a polyimide having a repeating unit represented by general formula (I): wherein R represents a bivalent organic group.

Abstract: The present invention provides a polymer lightguide which has a waveguide layer comprising a polyimide having a repeating unit represented by general formula (I): 1

Abstract: A leather-like material having a soft feed and a high water vapor permeability comprises a substrate of a fiber aggregate and a microporous grain layer mainly comprising a polyurethane elastomer and having an average thickness between 20 .mu.m and 300 .mu.m, preferably between 20 .mu.m and 200 .mu.m, more preferably 20 .mu.m and 100 .mu.m. The grain layer has an inner layer portion permeating partly into interstices of the fiber aggregate and bonding thereto, a topside having been coagulated to set up with a flat and smooth, or animal skin-like, grain appearance and micropores having an average pore diameter gradient of from at least 4 .mu.m in the inner layer portion to at most 3 .mu.m in the surface layer portion. The leather-like material is characterized by a water vapor permeability of from 1 to 30 mg/cm.sup.2.hr and a Gurley stiffness ratio of article to substrate of at most 1.5.

Abstract: Zeolite particles retaining silver ions having bacteriostatic properties on their ion-exchangeable sites in an amount up to 41% of the zeolite's exchange capacity are described.

Abstract: Zeolite particles retaining at least one metal ion having bacteriostatic properties on their ion-exchangeable sites in an amount up to 41% of the zeolite's ion exchange capacity are described.